Universal quantum-copying machines: A sufficient and necessary condition

Ying, M

Universal quantum-copying machines: A sufficient and necessary condition

Ying, M

Permalink

Publication Type:: Journal Article
Citation:: Physics Letters, Section A: General, Atomic and Solid State Physics, 2002, 302 (1), pp. 1 - 7
Issue Date:: 2002-09-09

Closed Access

	Filename	Description	Size
	2008004855OK.pdf		85.98 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Ying, M https://orcid.org/0000-0003-4847-702X	en_US
dc.date.issued	2002-09-09	en_US
dc.identifier.citation	Physics Letters, Section A: General, Atomic and Solid State Physics, 2002, 302 (1), pp. 1 - 7	en_US
dc.identifier.issn	0375-9601	en_US
dc.identifier.uri	http://hdl.handle.net/10453/8976
dc.description.abstract	It was shown that the copying quality of the Wootters-Zurek quantum copying machine depends on the input states. So Buzek and Hillery proposed the notion of universal copying machine. A universal machine is a quantum copier whose copying quality is independent of the input states. Buzek and Hillery further introduced a class of universal copying machines. In this short Letter, we establish a sufficient and necessary condition for a general copying machine to be universal. This condition will degenerate to the Buzek and Hillery's original one when we use it to analyze the Buzek and Hillery machines. On the other hand, this result enables us to find some new universal quantum-copying machines, and it also helps us to derive some interesting properties of universal machines. © 2002 Published by Elsevier Science B.V.	en_US
dc.relation.ispartof	Physics Letters, Section A: General, Atomic and Solid State Physics	en_US
dc.relation.isbasedon	10.1016/S0375-9601(02)01085-X	en_US
dc.subject.classification	Fluids & Plasmas	en_US
dc.title	Universal quantum-copying machines: A sufficient and necessary condition	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	302	en_US
utslib.for	080199 Artificial Intelligence and Image Processing not elsewhere classified	en_US
utslib.for	080203 Computational Logic and Formal Languages	en_US
utslib.for	020603 Quantum Information, Computation and Communication	en_US
utslib.for	01 Mathematical Sciences	en_US
utslib.for	02 Physical Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - QSI - Centre for Quantum Software and Information
utslib.copyright.status	closed_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	302	en_US

Abstract:

It was shown that the copying quality of the Wootters-Zurek quantum copying machine depends on the input states. So Buzek and Hillery proposed the notion of universal copying machine. A universal machine is a quantum copier whose copying quality is independent of the input states. Buzek and Hillery further introduced a class of universal copying machines. In this short Letter, we establish a sufficient and necessary condition for a general copying machine to be universal. This condition will degenerate to the Buzek and Hillery's original one when we use it to analyze the Buzek and Hillery machines. On the other hand, this result enables us to find some new universal quantum-copying machines, and it also helps us to derive some interesting properties of universal machines. © 2002 Published by Elsevier Science B.V.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/8976